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97020474 | 1 | /* Measure STRCHR functions. |
f7a9f785 | 2 | Copyright (C) 2013-2016 Free Software Foundation, Inc. |
97020474 SP |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #define TEST_MAIN | |
20 | #ifdef WIDE | |
21 | # define TEST_NAME "wcsrchr" | |
22 | #else | |
23 | # define TEST_NAME "strrchr" | |
24 | #endif | |
25 | #include "bench-string.h" | |
26 | ||
27 | #ifdef WIDE | |
28 | # include <wchar.h> | |
29 | # define SIMPLE_STRRCHR simple_wcsrchr | |
30 | # define STRRCHR wcsrchr | |
31 | # define CHAR wchar_t | |
32 | # define UCHAR wchar_t | |
33 | # define BIG_CHAR WCHAR_MAX | |
34 | # define SMALL_CHAR 1273 | |
35 | #else | |
36 | # define SIMPLE_STRRCHR simple_strrchr | |
37 | # define STRRCHR strrchr | |
38 | # define CHAR char | |
39 | # define UCHAR unsigned char | |
40 | # define BIG_CHAR CHAR_MAX | |
41 | # define SMALL_CHAR 127 | |
42 | #endif | |
43 | ||
44 | typedef CHAR *(*proto_t) (const CHAR *, int); | |
45 | CHAR *SIMPLE_STRRCHR (const CHAR *, int); | |
46 | ||
47 | IMPL (SIMPLE_STRRCHR, 0) | |
48 | IMPL (STRRCHR, 1) | |
49 | ||
50 | CHAR * | |
51 | SIMPLE_STRRCHR (const CHAR *s, int c) | |
52 | { | |
53 | const CHAR *ret = NULL; | |
54 | ||
55 | for (; *s != '\0'; ++s) | |
56 | if (*s == (CHAR) c) | |
57 | ret = s; | |
58 | ||
59 | return (CHAR *) (c == '\0' ? s : ret); | |
60 | } | |
61 | ||
62 | static void | |
63 | do_one_test (impl_t *impl, const CHAR *s, int c, CHAR *exp_res) | |
64 | { | |
65 | CHAR *res = CALL (impl, s, c); | |
44558701 WN |
66 | size_t i, iters = INNER_LOOP_ITERS; |
67 | timing_t start, stop, cur; | |
68 | ||
97020474 SP |
69 | if (res != exp_res) |
70 | { | |
71 | error (0, 0, "Wrong result in function %s %p %p", impl->name, | |
72 | res, exp_res); | |
73 | ret = 1; | |
74 | return; | |
75 | } | |
76 | ||
44558701 WN |
77 | TIMING_NOW (start); |
78 | for (i = 0; i < iters; ++i) | |
97020474 | 79 | { |
44558701 | 80 | CALL (impl, s, c); |
97020474 | 81 | } |
44558701 WN |
82 | TIMING_NOW (stop); |
83 | ||
84 | TIMING_DIFF (cur, start, stop); | |
85 | ||
86 | TIMING_PRINT_MEAN ((double) cur, (double) iters); | |
97020474 SP |
87 | } |
88 | ||
89 | static void | |
90 | do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char) | |
91 | /* For wcsrchr: align here means align not in bytes, | |
92 | but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)) | |
93 | len for wcschr here isn't in bytes but it's number of wchar_t symbols. */ | |
94 | { | |
95 | size_t i; | |
96 | CHAR *result; | |
97 | CHAR *buf = (CHAR *) buf1; | |
98 | ||
99 | align &= 7; | |
b8cd1c4e | 100 | if ((align + len) * sizeof (CHAR) >= page_size) |
97020474 SP |
101 | return; |
102 | ||
103 | for (i = 0; i < len; ++i) | |
104 | { | |
105 | buf[align + i] = (random () * random ()) & max_char; | |
106 | if (!buf[align + i]) | |
107 | buf[align + i] = (random () * random ()) & max_char; | |
108 | if (!buf[align + i]) | |
109 | buf[align + i] = 1; | |
110 | if ((i > pos || pos >= len) && buf[align + i] == seek_char) | |
111 | buf[align + i] = seek_char + 10 + (random () & 15); | |
112 | } | |
113 | buf[align + len] = 0; | |
114 | ||
115 | if (pos < len) | |
116 | { | |
117 | buf[align + pos] = seek_char; | |
118 | result = (CHAR *) (buf + align + pos); | |
119 | } | |
120 | else if (seek_char == 0) | |
121 | result = (CHAR *) (buf + align + len); | |
122 | else | |
123 | result = NULL; | |
124 | ||
b8cd1c4e | 125 | printf ("Length %4zd, alignment in bytes %2zd:", len, align * sizeof (CHAR)); |
97020474 SP |
126 | |
127 | FOR_EACH_IMPL (impl, 0) | |
128 | do_one_test (impl, (CHAR *) (buf + align), seek_char, result); | |
129 | ||
44558701 | 130 | putchar ('\n'); |
97020474 SP |
131 | } |
132 | ||
133 | int | |
134 | test_main (void) | |
135 | { | |
136 | size_t i; | |
137 | ||
138 | test_init (); | |
139 | ||
140 | printf ("%20s", ""); | |
141 | FOR_EACH_IMPL (impl, 0) | |
142 | printf ("\t%s", impl->name); | |
143 | putchar ('\n'); | |
144 | ||
145 | for (i = 1; i < 8; ++i) | |
146 | { | |
147 | do_test (0, 16 << i, 2048, 23, SMALL_CHAR); | |
148 | do_test (i, 16 << i, 2048, 23, SMALL_CHAR); | |
149 | } | |
150 | ||
151 | for (i = 1; i < 8; ++i) | |
152 | { | |
153 | do_test (i, 64, 256, 23, SMALL_CHAR); | |
154 | do_test (i, 64, 256, 23, BIG_CHAR); | |
155 | } | |
156 | ||
157 | for (i = 0; i < 32; ++i) | |
158 | { | |
159 | do_test (0, i, i + 1, 23, SMALL_CHAR); | |
160 | do_test (0, i, i + 1, 23, BIG_CHAR); | |
161 | } | |
162 | ||
163 | for (i = 1; i < 8; ++i) | |
164 | { | |
165 | do_test (0, 16 << i, 2048, 0, SMALL_CHAR); | |
166 | do_test (i, 16 << i, 2048, 0, SMALL_CHAR); | |
167 | } | |
168 | ||
169 | for (i = 1; i < 8; ++i) | |
170 | { | |
171 | do_test (i, 64, 256, 0, SMALL_CHAR); | |
172 | do_test (i, 64, 256, 0, BIG_CHAR); | |
173 | } | |
174 | ||
175 | for (i = 0; i < 32; ++i) | |
176 | { | |
177 | do_test (0, i, i + 1, 0, SMALL_CHAR); | |
178 | do_test (0, i, i + 1, 0, BIG_CHAR); | |
179 | } | |
180 | ||
181 | return ret; | |
182 | } | |
183 | ||
184 | #include "../test-skeleton.c" |